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Protect macros from user code to the left of them

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This commit is contained in:
romkatv 2019-02-16 19:23:36 +01:00
parent 41f4bf9cbc
commit 4db0631346
2 changed files with 25 additions and 7 deletions
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17
src/glog/logging.h.in
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@ -568,8 +568,10 @@ class LogSink; // defined below
LOG_TO_STRING_##severity(static_cast<std::vector<std::string>*>(outvec)).stream() LOG_TO_STRING_##severity(static_cast<std::vector<std::string>*>(outvec)).stream()
#define LOG_IF(severity, condition) \ #define LOG_IF(severity, condition) \
static_cast<void>(0), \
!(condition) ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity) !(condition) ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity)
#define SYSLOG_IF(severity, condition) \ #define SYSLOG_IF(severity, condition) \
static_cast<void>(0), \
!(condition) ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & SYSLOG(severity) !(condition) ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & SYSLOG(severity)
#define LOG_ASSERT(condition) \ #define LOG_ASSERT(condition) \
@ -859,6 +861,7 @@ DECLARE_CHECK_STROP_IMPL(strcasecmp, false)
&@ac_google_namespace@::LogMessage::SendToLog) &@ac_google_namespace@::LogMessage::SendToLog)
#define PLOG_IF(severity, condition) \ #define PLOG_IF(severity, condition) \
static_cast<void>(0), \
!(condition) ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & PLOG(severity) !(condition) ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & PLOG(severity)
// A CHECK() macro that postpends errno if the condition is false. E.g. // A CHECK() macro that postpends errno if the condition is false. E.g.
@ -1003,23 +1006,29 @@ const LogSeverity GLOG_0 = GLOG_ERROR;
#else // !DCHECK_IS_ON() #else // !DCHECK_IS_ON()
#define DLOG(severity) \ #define DLOG(severity) \
static_cast<void>(0), \
true ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity) true ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity)
#define DVLOG(verboselevel) \ #define DVLOG(verboselevel) \
(true || !VLOG_IS_ON(verboselevel)) ?\ static_cast<void>(0), \
(void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(INFO) (true || !VLOG_IS_ON(verboselevel)) ? \
(void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(INFO)
#define DLOG_IF(severity, condition) \ #define DLOG_IF(severity, condition) \
static_cast<void>(0), \
(true || !(condition)) ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity) (true || !(condition)) ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity)
#define DLOG_EVERY_N(severity, n) \ #define DLOG_EVERY_N(severity, n) \
static_cast<void>(0), \
true ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity) true ? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity)
#define DLOG_IF_EVERY_N(severity, condition, n) \ #define DLOG_IF_EVERY_N(severity, condition, n) \
static_cast<void>(0), \
(true || !(condition))? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity) (true || !(condition))? (void) 0 : @ac_google_namespace@::LogMessageVoidify() & LOG(severity)
#define DLOG_ASSERT(condition) \ #define DLOG_ASSERT(condition) \
static_cast<void>(0), \
true ? (void) 0 : LOG_ASSERT(condition) true ? (void) 0 : LOG_ASSERT(condition)
// MSVC warning C4127: conditional expression is constant // MSVC warning C4127: conditional expression is constant

15
src/windows/glog/logging.h
View File

@ -572,8 +572,10 @@ class LogSink; // defined below
LOG_TO_STRING_##severity(static_cast<std::vector<std::string>*>(outvec)).stream() LOG_TO_STRING_##severity(static_cast<std::vector<std::string>*>(outvec)).stream()
#define LOG_IF(severity, condition) \ #define LOG_IF(severity, condition) \
static_cast<void>(0), \
!(condition) ? (void) 0 : google::LogMessageVoidify() & LOG(severity) !(condition) ? (void) 0 : google::LogMessageVoidify() & LOG(severity)
#define SYSLOG_IF(severity, condition) \ #define SYSLOG_IF(severity, condition) \
static_cast<void>(0), \
!(condition) ? (void) 0 : google::LogMessageVoidify() & SYSLOG(severity) !(condition) ? (void) 0 : google::LogMessageVoidify() & SYSLOG(severity)
#define LOG_ASSERT(condition) \ #define LOG_ASSERT(condition) \
@ -863,6 +865,7 @@ DECLARE_CHECK_STROP_IMPL(strcasecmp, false)
&google::LogMessage::SendToLog) &google::LogMessage::SendToLog)
#define PLOG_IF(severity, condition) \ #define PLOG_IF(severity, condition) \
static_cast<void>(0), \
!(condition) ? (void) 0 : google::LogMessageVoidify() & PLOG(severity) !(condition) ? (void) 0 : google::LogMessageVoidify() & PLOG(severity)
// A CHECK() macro that postpends errno if the condition is false. E.g. // A CHECK() macro that postpends errno if the condition is false. E.g.
@ -1006,23 +1009,29 @@ const LogSeverity GLOG_0 = GLOG_ERROR;
#else // !DCHECK_IS_ON() #else // !DCHECK_IS_ON()
#define DLOG(severity) \ #define DLOG(severity) \
static_cast<void>(0), \
true ? (void) 0 : google::LogMessageVoidify() & LOG(severity) true ? (void) 0 : google::LogMessageVoidify() & LOG(severity)
#define DVLOG(verboselevel) \ #define DVLOG(verboselevel) \
(true || !VLOG_IS_ON(verboselevel)) ?\ static_cast<void>(0), \
(true || !VLOG_IS_ON(verboselevel)) ? \
(void) 0 : google::LogMessageVoidify() & LOG(INFO) (void) 0 : google::LogMessageVoidify() & LOG(INFO)
#define DLOG_IF(severity, condition) \ #define DLOG_IF(severity, condition) \
static_cast<void>(0), \
(true || !(condition)) ? (void) 0 : google::LogMessageVoidify() & LOG(severity) (true || !(condition)) ? (void) 0 : google::LogMessageVoidify() & LOG(severity)
#define DLOG_EVERY_N(severity, n) \ #define DLOG_EVERY_N(severity, n) \
static_cast<void>(0), \
true ? (void) 0 : google::LogMessageVoidify() & LOG(severity) true ? (void) 0 : google::LogMessageVoidify() & LOG(severity)
#define DLOG_IF_EVERY_N(severity, condition, n) \ #define DLOG_IF_EVERY_N(severity, condition, n) \
static_cast<void>(0), \
(true || !(condition))? (void) 0 : google::LogMessageVoidify() & LOG(severity) (true || !(condition))? (void) 0 : google::LogMessageVoidify() & LOG(severity)
#define DLOG_ASSERT(condition) \ #define DLOG_ASSERT(condition) \
static_cast<void>(0), \
true ? (void) 0 : LOG_ASSERT(condition) true ? (void) 0 : LOG_ASSERT(condition)
// MSVC warning C4127: conditional expression is constant // MSVC warning C4127: conditional expression is constant